Chemistry – Chemical reactions - Redox | e-Consult
Chemical reactions - Redox (1 questions)
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Oxidation: Zinc (Zn) is oxidized. This is because the oxidation state of zinc changes from 0 in Zn(s) to +2 in Zn2+(aq). Oxidation involves the loss of electrons.
Reduction: Copper(II) ions (Cu2+) are reduced. This is because the oxidation state of copper changes from +2 in Cu2+(aq) to 0 in Cu(s). Reduction involves the gain of electrons.
Explanation in terms of oxidation states: Oxidation is an increase in oxidation state, and reduction is a decrease in oxidation state. In this reaction, zinc's oxidation state increases, and copper(II)'s oxidation state decreases.